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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include "common/text-to-speech.h"
#include "common/system.h"
namespace Common {
TTSVoice::TTSVoice()
: _gender(UNKNOWN_GENDER)
, _age(UNKNOWN_AGE)
, _data(nullptr)
, _description("") {
_refCount = new int;
*_refCount = 1;
}
TTSVoice::TTSVoice(Gender gender, Age age, void *data, String description)
: _gender(gender)
, _age(age)
, _data(data)
, _description(description) {
_refCount = new int;
*_refCount = 1;
}
TTSVoice::TTSVoice(const TTSVoice& voice)
: _gender(voice._gender)
, _age(voice._age)
, _data(voice._data)
, _refCount(voice._refCount)
, _description(voice._description) {
if (_data)
(*_refCount)++;
}
TTSVoice::~TTSVoice() {
// _data is a platform specific field and so it the
// way it is freed differs from platform to platform
if (--(*_refCount) == 0) {
if (_data)
g_system->getTextToSpeechManager()->freeVoiceData(_data);
delete _refCount;
}
}
TTSVoice& TTSVoice::operator=(const TTSVoice& voice) {
if (&voice != this) {
_gender = voice._gender;
_data = voice._data;
_age = voice._age;
_refCount = voice._refCount;
if (_data)
(*_refCount)++;
_description = voice._description;
}
return *this;
}
TextToSpeechManager::TextToSpeechManager() {
_ttsState = new TTSState;
_ttsState->_pitch = 0;
_ttsState->_volume = 0;
_ttsState->_rate = 0;
_ttsState->_activeVoice = 0;
_ttsState->_language = "en";
_ttsState->_enabled = false;
_ttsState->_next = nullptr;
}
void TextToSpeechManager::pushState() {
stop();
TTSState *newState = new TTSState;
newState->_pitch = _ttsState->_pitch;
newState->_volume = _ttsState->_volume;
newState->_rate = _ttsState->_rate;
newState->_activeVoice = _ttsState->_activeVoice;
newState->_language = _ttsState->_language;
newState->_enabled = _ttsState->_enabled;
newState->_next = _ttsState;
_ttsState = newState;
updateVoices();
}
bool TextToSpeechManager::popState() {
stop();
if (_ttsState->_next == nullptr)
return true;
Common::TTSState *oldState = _ttsState;
_ttsState = _ttsState->_next;
delete oldState;
// The voice has to be saved, because some backends change it when changing language
int voice = _ttsState->_activeVoice;
setLanguage(_ttsState->_language);
setPitch(_ttsState->_pitch);
setVolume(_ttsState->_volume);
setRate(_ttsState->_rate);
setVoice(voice);
return false;
}
void TextToSpeechManager::enable(bool on) {
if (_ttsState->_enabled == on)
return;
_ttsState->_enabled = on;
updateVoices();
}
void TextToSpeechManager::clearState() {
TTSState *tmp = _ttsState;
while (tmp != nullptr) {
tmp = _ttsState->_next;
delete _ttsState;
_ttsState = tmp;
}
}
TTSVoice TextToSpeechManager::getVoice() {
if (!_ttsState->_availableVoices.empty())
return _ttsState->_availableVoices[_ttsState->_activeVoice];
return TTSVoice();
}
Array<int> TextToSpeechManager::getVoiceIndicesByGender(TTSVoice::Gender gender) {
Array<int> results;
for (unsigned i = 0; i < _ttsState->_availableVoices.size(); i++) {
if (_ttsState->_availableVoices[i].getGender() == gender)
results.push_back(i);
}
return results;
}
void TextToSpeechManager::setLanguage(Common::String language) {
// The speech manager uses the ISO 639-1 for language codes (2 letter code)
// if we get a longer language string, just take the first 2 letters from that
// if it won't be a valid language code, the Manager just won't find any voice
// for it. This way a code like (en_GB) can also be passed to this.
if (language.size() > 2) {
language.erase(2, Common::String::npos);
}
_ttsState->_language = language;
}
}
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